Earthquake with magnitude of ML 1.8 on date 22-02-2020 and time 08:52:03 (Italy) in region 3 km SW Santa Sofia (FC)

A magnitude ML 1.8 earthquake occured in region: 3 km SW Santa Sofia (FC), on

  • 22-02-2020 07:52:03 (UTC)
  • 22-02-2020 08:52:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9210, 11.8890 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Santa Sofia FC 3 4136 4136
Galeata FC 9 2516 6652
Bagno di Romagna FC 10 6026 12678
Civitella di Romagna FC 10 3786 16464
Premilcuore FC 11 799 17263
Portico e San Benedetto FC 15 756 18019
Rocca San Casciano FC 16 1910 19929
Verghereto FC 17 1907 21836
Pratovecchio Stia AR 20 5845 27681

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Forlì (117913 inhabitants)
37 Km SW of Cesena (96758 inhabitants)
41 Km S of Faenza (58541 inhabitants)
50 Km S of Imola (69797 inhabitants)
51 Km N of Arezzo (99543 inhabitants)
53 Km E of Firenze (382808 inhabitants)
56 Km W of Rimini (147750 inhabitants)
60 Km E of Scandicci (50609 inhabitants)
61 Km SW of Ravenna (159116 inhabitants)
64 Km E of Prato (191150 inhabitants)
77 Km SE of Bologna (386663 inhabitants)
78 Km E of Pistoia (90315 inhabitants)
81 Km NE of Siena (53903 inhabitants)
82 Km W of Pesaro (94582 inhabitants)
91 Km W of Fano (60888 inhabitants)
99 Km NW of Perugia (166134 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.8 2020-02-22
07:52:03
43.9212 11.8893 8 2020-07-18
21:08:22
Bollettino Sismico Italiano INGV 76865911
Reviewed
Rev100
ML 1.8 2020-02-22
07:52:03
43.9195 11.8577 9 2020-02-22
07:57:19
Sala Sismica INGV-Roma 76714961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-22 07:52:03 ± 0.08
Latitude 43.9212 ± 0.0036
Longitude 11.8893 ± 0.0062
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76865911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 490
Semi-minor axis of confidence ellipse (meter) 196
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51441
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 76865911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-27 12:48:30

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 76714961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-22 07:57:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NDIM.HNZ. 2020-02-22T07:52:42.08 3.0 undecidable manual S -0.56 0
IV.VISG.HHZ. 2020-02-22T07:52:19.45 0.3 undecidable manual S 309 46.9197 50 0.28 67
IV.SEI.HHZ. 2020-02-22T07:52:18.66 0.3 undecidable manual S 289 44.8218 50 0.03 71
IV.PARC.HHZ. 2020-02-22T07:52:17.79 0.6 undecidable manual S 137 41.2254 50 0.14 47
IV.ATVO.HHZ. 2020-02-22T07:52:16.88 3.0 undecidable manual P 0.37 0
IV.RONT.HHZ. 2020-02-22T07:52:16.87 0.3 undecidable manual S 283 37.3293 50 0.26 69
IV.BRIS.HHZ. 2020-02-22T07:52:16.15 0.3 undecidable manual S 344 35.0427 103 0.19 70
IV.CRE.HHZ. 2020-02-22T07:52:15.41 0.3 undecidable manual S 172 33.9438 103 -0.16 70
IV.MPPT.EHZ. 2020-02-22T07:52:15.21 3.0 negative manual P 0.14 0
IV.OSSC.HHZ. 2020-02-22T07:52:15.94 3.0 negative manual P 0.32 0
IV.NARO.HHZ. 2020-02-22T07:52:15.50 3.0 undecidable manual P 0.17 0
IV.MTRZ.HNN. 2020-02-22T07:52:14.58 1.0 undecidable manual P 320 57.0984 50 0.47 21
IV.RUFI.EHZ. 2020-02-22T07:52:14.64 0.1 undecidable manual S 253 31.746 104 -0.2 94
IV.VISG.HHZ. 2020-02-22T07:52:12.21 0.3 undecidable manual P 309 46.9197 50 -0.33 66
IV.RINC.HHZ. 2020-02-22T07:52:12.17 0.3 undecidable manual S 260 22.8549 109 0.28 70
IV.FIR.HHZ. 2020-02-22T07:52:12.60 3.0 undecidable manual P -0.64 0
IV.SEI.HHZ. 2020-02-22T07:52:11.87 0.3 undecidable manual P 289 44.8218 50 -0.36 66
IV.CPGN.EHZ. 2020-02-22T07:52:11.39 0.1 undecidable manual P 111 36.9297 50 0.38 89
IV.LMD.HHZ. 2020-02-22T07:52:11.62 0.3 undecidable manual S 320 22.6551 109 -0.19 71
IV.SSP9.EHZ. 2020-02-22T07:52:11.75 0.6 undecidable manual P 153 43.1235 50 -0.21 46
IV.PARC.HHZ. 2020-02-22T07:52:11.41 0.3 undecidable manual P 137 41.2254 50 -0.25 68
IV.BRIS.HHZ. 2020-02-22T07:52:10.85 0.1 undecidable manual P 344 35.0427 103 0.16 94
IV.ASQU.HHZ. 2020-02-22T07:52:10.21 0.3 undecidable manual S 210 15.9729 116 0.54 67
IV.CRE.HHZ. 2020-02-22T07:52:10.16 0.1 undecidable manual P 172 33.9438 103 -0.31 91
IV.RONT.HHZ. 2020-02-22T07:52:10.80 0.3 undecidable manual P 283 37.3293 50 -0.27 68
IV.RUFI.EHZ. 2020-02-22T07:52:09.78 0.1 undecidable manual P 253 31.746 104 -0.26 92
IV.RINC.HHZ. 2020-02-22T07:52:08.37 0.1 undecidable manual P 260 22.8549 109 0.03 98
IV.LMD.HHZ. 2020-02-22T07:52:08.07 0.1 undecidable manual P 320 22.6551 109 -0.22 95
IV.ASQU.HHZ. 2020-02-22T07:52:07.35 0.1 undecidable manual P 210 15.9729 116 0.29 94
IV.SFI.HNZ. 2020-02-22T07:52:06.45 0.3 undecidable manual S 242 3.8961 154 -0.09 75
IV.SFI.HNZ. 2020-02-22T07:52:05.36 0.1 undecidable manual P 242 3.8961 154 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:1.8 0.000647 0.24 AML other m 2020-02-22T07:52:10.78
IV.ASQU.HHN. ML:1.9 0.000856 0.18 AML other m 2020-02-22T07:52:10.71
IV.LMD.HHE. ML:2.2 0.000978 0.62 AML other m 2020-02-22T07:52:12.04
IV.LMD.HHN. ML:2.0 0.000633 0.3 AML other m 2020-02-22T07:52:12.36
IV.RINC.HHE. ML:1.7 0.0003445 0.42 AML other m 2020-02-22T07:52:12.46
IV.RINC.HHN. ML:1.6 0.0002695 0.9 AML other m 2020-02-22T07:52:12.25
IV.RUFI.EHE. ML:1.6 0.0001895 0.32 AML other m 2020-02-22T07:52:14.94
IV.RUFI.EHN. ML:1.8 0.0002595 1.46 AML other m 2020-02-22T07:52:15.14
IV.CRE.HHN. ML:2.2 0.000605 0.24 AML other m 2020-02-22T07:52:15.94
IV.CRE.HHE. ML:1.7 0.0002045 0.32 AML other m 2020-02-22T07:52:16.43
IV.BRIS.HHE. ML:1.8 0.0002805 0.94 AML other m 2020-02-22T07:52:20.62
IV.BRIS.HHN. ML:1.7 0.000219 1.62 AML other m 2020-02-22T07:52:20.83
IV.MPPT.EHN. ML:1.9 0.0001395 0.36 AML other m 2020-02-22T07:52:24.55
IV.MPPT.EHE. ML:1.7 0.000089 1.32 AML other m 2020-02-22T07:52:24.93
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download